Is the title of j. s. bach's collection of preludes and fugues issued in two volumes and demonstrating the new tuning system for keyboard instruments.

The correct answer is: The Well-Tempered Clavier.

Explanation:

The Well-Tempered Clavier is a collection of Johann Sebastian Bach’s (1685-1750) 24 preludes and 24 fugues issued in two volumes (Book I – 1722 and Book II – 1742).

It contains the intricacies of each of the 12 major and 12 minor keys and it is considered the most-influential undertaking for the solo keyboard of the Baroque.

variety in color and variety in texture

perimeter = 2l +2w, divide total perimeter by 2 for total length of 1 side and 1 width

172/2 = 86 (  total for 1 side and 1 width)

86-24 = 62 (since length is 24 ft longer subtract 24 then divide by 2 for width)

62/2 = 31

width = 31 feet

length = 31 +24 = 55 feet

check: 31*2 = 62, 55*2 = 110,  110+62 = 172